Holzschutzmittel, Verfahren zur Herstellung sowie dessen Verwendung

WO 200107217 A UPAB: 20010323 NOVELTY - A wood protectant composition contains salicylic acid (I) dissolved in ethanol as essential fungicidal component. DETAILED DESCRIPTION - A wood protectant composition contains salicylic acid (I) dissolved in ethanol as essential fungicidal component. An INDEPENDENT CLAIM is included for a method for protecting wood against fungal degradation and controlling wood-degrading fungi, involving treating the wood with (I) dissolved in ethanol. ACTIVITY - Fungicidal. In tests in pine sapwood, pretreatment with 2 wt. % (I) in ethanol completely prevented weight loss on incubation with Gloeophyllum sepiarum for 5 weeks at 23 deg. C, whereas untreated wood showed a weight loss of 26.3% under the same conditions. MECHANISM OF ACTION - None given. USE - For protecting wood, especially structural timber, against degradation and rotting caused by fungi such as Serpula lacrimans, Gloeophyllum sepiarum or Donkioporia expansa. ADVANTAGE - (I) (previously used as a bactericide in human and veterinary medicine) has been found to show strong fungicidal activity against living saprophytic fungi. It is readily available in large amounts, inexpensive, non-toxic and stable on long-term storage in ethanolic solution. The ethanolic solution penetrates deeply into the wood. (I) is readily fixed in wood using a combination of animal blood serum and metal salts, thus preventing bleeding of (I) from the wood and giving a water-resistant fungicidal effect; animal blood serum is inexpensive and readily available, and in presence of metal salts provides additional fungicidal activity